Featuresr size is optional mcn seuchest 378 lcn meuchest 394 xlcn leuchest 409 xxlcn xleuchest 433 3xlcn xxleuchest 457r made of polyester and spandex material offering moisture wicking quick drying and durabilityr zipper cover of neck opening to prevent from scratchingr reflective strip on the back and logo mark to ensure night riding safetyr good stitching makes good qualityr suitable for cycling running camping or other outdoor activities